Identification

What does 57 mean?

The motor identification run, which is crucial for tuning the drive to the motor's specific electrical characteristics, has failed. This can occur if the run command was removed prematurely, the motor is not correctly connected to the AC drive, or an external load is present on the motor shaft during the process. An unsuccessful identification run can lead to suboptimal motor control and performance.

• Motor shaft was obstructed or prevented from rotating freely during the identification run.
• Incorrect motor nameplate data entered into drive parameters (e.g., P3-01 (Motor rated current), P3-02 (Motor rated power)).
• Insufficient motor cable length or excessively high motor cable capacitance for the motor identification algorithm.
• Drive's output phases not correctly connected to the motor (e.g., U, V, W swapped or one phase missing).
• Motor type or size incompatible with the drive's identification capabilities (e.g., very small motor on a large drive).

Click steps to track your progress.

1. 1

   Ensure the motor shaft is completely free to rotate without any mechanical load or obstruction.

2. 2

   Verify all motor parameters (P3-01 to P3-09, P3-11) precisely match the motor nameplate data.

3. 3

   Check the motor wiring for correct phase sequence (U, V, W) and secure connections at the drive and motor terminals.

4. 4

   If using a short motor cable, ensure it meets minimum length requirements for accurate identification.

5. 5

   Retry the motor identification run (e.g., by setting P3-10 to "1" or "2") ensuring no interruptions.

6. 6

   If the issue persists, perform a static identification run if the drive supports it (e.g., P3-10 = "2") or contact support with recorded motor data.